STREET HP™ CARBURETOR P/N 0-82651, 0-82750, 0-82751, 0-82851, & 0-82951 INSTALLATION, TUNING, AND ADJUSTMENT MANUAL 199R10319-2 NOTE: These instructions must be read and fully understood before beginning installation. If this manual is not fully understood, installation should not be attempted. Failure to follow these instructions, including the pictures may result in subsequent system failure.
TABLE OF CONTENTS: INTRODUCTION: .........................................................................................................................3 REMOVAL: ..................................................................................................................................3 INSTALLATION NOTES: .............................................................................................................3 CHRYSLER APPLICATIONS ..............................................................
INTRODUCTION: CONGRATULATIONS on your purchase of the Street HP™ Carburetor! We feel that you have purchased the finest street performance carburetor manufactured today. Should you need information or parts assistance, please contact our HP Technical Service Department at 1-866-GOHOLLEY (1-866-464-6553). Please have the part number and sales receipt ready when calling. IMPORTANT: The STREET HP™ carburetor has been factory wet-flowed and calibrated.
Figure 1—Chrysler applications FORD APPLICATIONS NOTE: Unless replacing an existing Holley® Carburetor, you will need to purchase Holley® P/N 20-60, spring and perch kit, for Ford automatic transmissions. 1. Install the new throttle ball, lockwasher, and retaining nut to the carburetor throttle lever in the same position as the existing carburetor. 2. Insert the transmission kickdown screw with the black retaining clip on the transmission kickdown lever (Figure 2).
Figure 3—Ford applications Figure 4—Ford applications GM APPLICATIONS WARNING: If you are using this carburetor with a GM overdrive transmission TH700R4 or a TH200R4, you must use a transmission kickdown cable bracket (Holley® P/N 20-95) and geometry corrector (Holley® P/N 20-121). Otherwise, SEVERE transmission damage WILL result. Depending on your accelerator bracket, you will need one of the following throttle studs: Holley® P/N 20-2, 20-38, or 20-40.
NOTE: With the engine turned off, have an assistant slowly press the accelerator pedal to the floor, while you watch the throttle for any sticking or binding. Correct any sticking or binding conditions before proceeding. Also ensure that you are reaching full throttle. Many performance problems are traced to partial throttle openings from improperly adjusted linkage. Figure 6 6. Reconnect the appropriate vacuum hoses to the carburetor, noting the correct fitting from Figure 6 and 7. A. B.
Figure 7 WARNING: During the fuel line installation, DO NOT allow any foreign particles to enter the fuel lines, which could then cause flooding and may result in a fire. WARNING: Keep the fuel line away from the EGR valve (if equipped) on the intake manifold. If installation requires cutting the metal fuel line, cut the fuel line with a good tube cutter. This will minimize the chance of producing metal chip particles. If a hacksaw must be used then metal chips must be removed.
15. With some air cleaner configurations, it may be necessary to use an air cleaner spacer to provide adequate clearance between the carburetor and the air cleaner. Holley® offers such a spacer (Holley® P/N 17-13). Depending on the overall height, obtain the proper length 5/16 x 18 stud and install in the carburetor airhorn. Close the hood slowly to ensure adequate clearance between the air cleaner stud and the hood.
ROUGH IDLE AND VACUUM LEAKS: If a rough idle persists after the engine has been started and the mixture screws adjusted, check for manifold vacuum leaks. These could result from unplugged vacuum fittings or a carburetor flange gasket that was torn during installation. Recheck for proper attachment of all vacuum lines and check the lines for cracks. If the manifold was changed, a manifold vacuum leak could occur at the cylinder head/manifold surface due to damaged gaskets or improper torquing.
VACUUM OPERATED SECONDARY THROTTLES: Many people have the misconception that opening the secondary throttles sooner will provide increased performance and quicker drag strip times. Others think they must “feel” a kick when the secondaries engage. Still others believe that they should disconnect the vacuum diaphragm and make the secondaries open mechanically. Before going any further, let’s discuss these points in a reverse order.
Figure 13 8. Tighten the two Phillips screws securely and reinstall the air cleaner, as shown in Figure 13. 9. Test drive the vehicle. JETTING (MAIN JETS): Due to varied applications that a universal performance carburetor will work with, a few tips on jetting are provided to help you understand their purpose. 1. Out of the box jetting is extremely close for most applications. 2. Carburetors are calibrated at sea level. Decrease the jet size primary and secondary, one number for every 2000 ft.
Holley® Performance Products, Inc. 1801 Russellville Road Bowling Green, KY 42101-3542 Technical Service: 1-270-781-9741 Toll Free: 1-866-GOHOLLEY (1-866-464-6553) Fax: 1-270-781-9772 For online help, please refer to the Tech Service section of our website: www.holley.com © 2004 Holley Performance Products, Inc. All rights reserved.
